CREATE OR REPLACE FUNCTION
  cdb_moran_local (
      t TEXT,
  	  attr TEXT,
  	  significance float DEFAULT 0.05,
  	  num_ngbrs INT DEFAULT 5,
  	  permutations INT DEFAULT 99,
  	  geom_column TEXT DEFAULT 'the_geom',
  	  id_col TEXT DEFAULT 'cartodb_id',
  	  w_type TEXT DEFAULT 'knn',
      random_seed INTEGER DEFAULT NULL
  )
RETURNS TABLE (moran FLOAT, quads TEXT, significance FLOAT, ids INT)
AS $$
  from crankshaft.clustering import moran_local
  # TODO: use named parameters or a dictionary
  return moran_local(t, attr, significance, num_ngbrs, permutations, geom_column, id_col, w_type, random_seed)
$$ LANGUAGE plpythonu;
